Valve tool



S p 6, 193 c. L. HARRIS, JR.. ET AL 1,875,595

VALVE TOOL Filed Dec. 31, 1950 Fig. 3.

V///// /////////Z Y///////////E 7 Q Zmventor; C.L.Hqms Jr. F1g- C.H.SaL-strom a Gttorneg CHARLES nfnnnnrs'ym AND CLARENCE n. snns rnom or sr'.nnwARI ,N Emtiisxa Patented Sept. 6, 1932 I VALVE moor.

Application filed December 31, 1930. "Seria1"No. 505,915.

V i The present invention relates to valve handling tools, and more particularly to an improved construction of tool adapted for application to the valves of internal combus- "Tion engines to facilitate the removal and replacing of the valves. 1

An object of the present invention is to I provide a simply constructed and inexpensive tool which may be manipulated by hand 'To compress valve springs of the valves mounted in a valve in the head motor where in the head carries rocker'arms for the compression of the valve springs, the toolbeing,

constructed with a pivotal or anchoring poriion for co-operation with the posts upon which the rocker arms are mounted.

Another object of the present invention is to providea valve tool in the form of a flat arm or lever which maybe quickly and easily Jtamped or otherwise worked up from a me-.

tallic blank and which is provided with .a

hinged anchorlng portion having an opening therethrough of a size'adapted to bind upon the rocker arm post when the pivoted or- Lion is canted incident to the swinging 0 the lever over the valve in the act of compress:

ing the spring.

A further object of thepresent invention is to provide a hand operable valve spring l-fompressing tool of a construction admitting of the quick and easy release of the locking ring, pin, or other device carriedupon the upper end of the valve stem by but a slight compression of the valve spring.

1 With the foregoing and other objects in view, the invention will be more fully de-' scribed hereinafter, and will be more particularly pointed out in the claims appended hereto. 1 n

- In the'drawing, wherein like symbols refer to like or corresponding partsthroughout the several views.

Figure 1 is a transverse section taken through the'head of a cylinder of the over.-

liead valve type and showing a valve to'ol' constructed according to the presentinven-v tion applied thereto.

Figure 2, is a top plan view, partlylbrolren to the present invention.v q 1 v Figure 3 is -an edge elevation of the same.

x away, of a valvetool constructed according;

Figure 4 is a longitudinal central section-s taken through the -tool,- and a 1 Figure '55 is. a transverse section taken-,1: through the tool on the line 5-5 of Figure 2.

Referring nowrto the drawing,'10 designates a; handle'which. is flat, of suitable v length and at its outer endis shaped to the configuration of a handgrip 11 for facilitat ing the grasping of the outer endof the lever or arm 10 to manipulatethe tool. a

The inner end of the lever 10,-'1s laterall enlarged toprovide ahead'l2.- The head 12 has an elongated substantially.rectangular:

slot or opening 13 having opposed side walls 14 which are beveled or inclinedoutwardly and upwardly with respect to the upper face 1 of the lever 10, asshown in Figures 2 and 5.: i Theoute-r vend of the head 12 is recessed'a-ndf provided with a pair of edgewise displaced lugs; l5swhich carry a crossl'pin or pivotilfi upon which is hinged an apertured anchoring lug 17. The lug'17 is provided witha cylin dricall aperture 18 of a size slightlygreater than the diameterof theppost 19; shown in 15 a; Figure 1," which rises from thecylinder head 20 to support the usual rocker arms and the like from a part of an overhead valve=motor.

The head 20 is provided with a post 19 adjacent each valve stem 21. 7 Each valve stem 21 carries a valve head 22- upon its lower end which is seated in the usual mannerin the block 20 and which is slidable through a bearingsleeve 23 fitted through the top ofthe head' 20 and which serves as a guide 'for'the valve stem 21. 1

The usual valve spring 24 is mounted about; t the sleeve 23 above the head 20 andlies be- "neath a cupped disc 25 which is heldin engagement with the upper end of the spring 24 by means of a split ring 26 or the like in the usual manner and which engages with the upper end of the valve stem 21. r

A block 27 of wood or other suitable material is proportioned to fit in the cavity of the head 20 beneath the valve head 22 for holding the latter to its seat and with the upper end of the stem 21 above the bearing sleeve 23. 1

In operation or use of the valve tool, when it is desired to remove a valve from the head 20, it is only necessary to slidably engage the pivoted lug 17 over the upper end ofthe post 19 of the head and slide the lug 17 downwardly over the post until the head 12 of the tool comes into contact with the cupped .disc 28 of the valve. The tool head 12 is so adjusted, by manipulation of the handle or lever 10, as to. bring the upper end of the valve stem 21 into position through the elongated slot 13 ofthe head 12 and with the opposite sides of the slot 13 in engagement with the upper face of the disc 25.

When the tool is in this position, and presdle 10 when the latter is moved downward.

The downward movement of the lever 10 forces the head 12 thereof against the disc 25 and contracts the spring 24 soas to move the disc 25 and the head 12 of the tool downwardly away from the split ring,26, or other device which is seated onthevalve stem.

Thus, as shown in Figure 1, when the tool is in releasing position, the ring or'other device 26 may be easilyremoved from the valve stem, particularly since the side walls 14 of the slot in the head of the tool are beveled'outwardly and upwardly'so as to increase the width of the slot in the upper surface of the tool. Incident to this arrangement of r the surface 14, it is apparent that the lever 10 does not have to be forced downwardly to as great an extent as would be the case were the opposite walls 14; disposed in parallel relation to each other.

To remove the tool, it is only necessary to relax upon the pressure on the handle or lever 10 and to slide the pivoted lug 17 upwardly on the post 19, preferably by direct application of the fingers tothe lug. The lug 17 may be quickly and easily slid over the selected post 19 and may quickly withdrawn therefrom so that the tool requires no setting of bolts, clamps or other devices which consume time in their application and adjustment and which necessarily; provide a complicated structure. The valve springs 24lof the wall series of valves of the head may be thus having a slot through theheadlfor the res. ception' of the stem, a lug pivotally mounted on; the outer end of the head and provided with an opening therethrough adapted to loosely engage overa rocker arm post and to bind thereon upon the swinging of the lever about the valve stem. I

2. A valve removing tool, comprising an elongated flat lever having a hand grip on its outer end and provided with a laterally enlarged head on its inner end, said head having an elongated centrallydisposed slot adapted to receive a valve stem upwardly therethrough and having upwardly and out wardly flaring side walls definingthe sides of the'slot, saidhead also having a pair of edgewise separated lugs at its outer end, a

pivot pin carried across said lugs, an apertured lug mounted on said pivot pin and having an opening therethrough of greater diameter than that of the rocker arm post of an engine head for'pivotally and loosely supporting the lug on the post, said lug adapted to cant on-the post under pressure of said lever to bind the lug in adjusted position'on the post and anchor the inner end of the lever adjacent the valve to be removed.

3. A valve removing tool for application to cylinder heads of overhead valve motors havingrocker arm supporting posts and upwardly extending valve stems with their parts adjacent the posts, comprising an elongated flat lever having a head at one end with fiat upper and lower sides and adapted to rest upon the cupped disc of the valve stem, said head having a longitudinal slot therein through which said stem is adapted to project,

an apertured lug pivotally mountedon the outer end of the head and normally lying in the horizontal plane of the head and having an opening therethrough of greater diameter than that of the post for slidable engagement over the post and adapted to bind thereon when canted under pressure of the lever, said lever adapted to be disposed horizontally across the cupped disc and with the pivoted lug anchored on the adjacent post, whereby downward swinging of the outer/end of the lever binds said lug on the post and forces said disc downwardly about the "upper end of the valve stem 4. A valve removing tool, comprising a relatively long flat lever having a handle on one end and a slotted head on the otherend for receiving a valve stem therethrough, and an apertured lug hingedly mounted on the head of the lever and adapted for bindingengagement over a rocker arm post adjacentv the valve stem for anchoring the lever dur-- ing operation.

In testimony whereof, We afiix our signatures.

' CHARLES L. HARRIS, JR.

CLARENCE H. SALSTROM. 

